摘要
电气化铁路接触网停电检修时,接触网通过接地杆挂接到单轨条方式来释放停电线路残压,导致流过接收端设备的电流形成差模信号,造成轨道电路红光带。通过对不平衡电流产生的原理以及轨道电路红光带原因进行分析,提出解决供电作业导致红光带的解决方案,保证供电作业人身安全和铁路信号设备的正常运行。
During the maintenance of an overhead contact line network of an electrifi ed railway that is disconnected from the power supply,the contact line network is connected to a single rail through a grounding rod to release the residual voltage of the disconnected power line,causing the current fl owing through the receiving end equipment to generate a diff erential-mode signal,resulting in a redlight strap in the track circuit.This article analyzes the principle of unbalanced current generation and the causes of red-light straps in track circuits,and proposes solutions to solve the problem of red-light straps caused by power supply operations,ensuring personal safety during power supply operations and the normal operation of railway signal equipment.
出处
《铁路通信信号工程技术》
2024年第S1期103-105,132,共4页
Railway Signalling & Communication Engineering
关键词
接触网
不平衡
红光带
overhead contact line system
imbalance
red-light strap
